What is it about?
We use light propagation in ejecta to better characterize it.
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Photo by Jonas Frey on Unsplash
Why is it important?
This study substantially enhances the analysis of ejecta in shock compression experiments by Photon Doppler Velocimetry (PDV) beyond single scattering. It establishes a comprehensive theoretical model addressing the impact of multiple scattering ubiquitous in numerous dynamic and disordered media, among which ejecta. In particular, we present a rigorous derivation connecting usual PDV result representation and commonly used light transport models. Numerical simulations of this theoretical model emphasize the pivotal role of multiple scattering and inhomogeneities in particle density and size-velocity distribution. This result will certainly have a strong impact in the future of PDV-based ejecta analysis.
Perspectives
We hope to enhance ejecta characterization.
Jérôme Don Jayamanne
ESPCI ParisTech
Read the Original
This page is a summary of: Characterization of ejecta in shock experiments with multiple light scattering, Journal of Applied Physics, February 2024, American Institute of Physics,
DOI: 10.1063/5.0190613.
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